baber/WOPTO huggingface dataset:
Patent GB-1077932-A (GB)
Title: Halofluorination of hydrocarbons
Inventor: HOWE BRIAN KEITH
IPC: C07C17/10
Filed: 1963-02-15
Abstract: Straight chain saturated or ethylenically unsaturated hydrocarbons having up to 15 carbon atoms in the molecule are halofluorinated by reaction in the vapour phase at 200 DEG  to 650 DEG  C. simultaneously with HF and Cl2, Br2 or I2 in a reactor in the presence of elemental carbon and, at least when the process is the chlorofluorination of methane, in the absence of any metallic halide catalyst, the reaction being conducted at a pressure of at least 0.5 atmosphere and with a residence time of reactants in the reactor of 0.1 to 200 seconds.  When a hydrocarbon containing 3-15 carbon atoms is chlorofluorinated it is possible, by suitable choice of reaction conditions, to cause degradation of the reaction products such that at least one chlorofluoromethane is obtained.  When pentane is chlorofluorinated the reaction product may contain cyclic chlorofluoro compounds having a five-numbered carbon ring.
Patent GB-557324-A (GB)
Title: Improvements in the production of cellulose from ligno-cellulosic material
IPC: D21C9/08
Filed: 1942-05-11
Abstract: 557,324. Refining cellulosic materials. DREYFUS, H. May 11, 1942, No. 6328. [Class 2 (ii)] In the preparation of cellulose from wood or other ligno-cellulosic material, the material is first subjected to a treatment to remove the lignin and is then heated with a dilute aqueous solution of an acid, other than nitric or nitrous acid, then treated with an alkaline solution to dissolve hemicelluloses, and then the alkaline solution containing the hemicelluloses is removed from the materials. The acid used may by hydrochloric, sulphuric, oxalic, tartaric, or citric acid of a concentration of 0.05 to about 1.0 per cent. strength. The treatment may be carried out at 80-100‹C. for one half to three hours. Wood of poplar, beech, oak, or birch, or straw may be partially or wholly de-lignified by the sulphate, soda, bisulphite, chlorine, peroxide, or hypochlorite processes. The material may then be treated with a dilute solution of caustic soda for removal of residual lignin. The material may then be heated with the dilute acid. After the acid treatment, hemicelluloses may be removed by treatment with caustic soda solution of 6-15 per cent. strength at ordinary temperature. The material may then be treated with a 0.5-1 per cent. solution of caustic soda at 100‹-120‹C. and it may then be bleached. If desired, treatment with the dilute alkali may be carried out before treatment with the more concentrated alkali. In an example, straw is heated under pressure' with dilute caustic soda solution. The crude cellulose is mixed with calcium hypochlorite and water acidulated with hydrochloric acid. After several hours the bleached cellulose is boiled with dilute sodium carbonate solution, and then boiled for 2 hours with dilute hydrochloric acid solution. The cellulose is then treated with a solution of caustic soda of 12 per cent. strength at room temperature for one hour. It is boiled with dilute caustic soda, and then bleached with calcium hypochlorite. The cellulose produced by the process may be used for making high grade paper or for producing cellulose xanthate, cuprammonium cellulose solutions, cellulose acetate, or other cellulose derivatives. Specifications 438,435, 474,305, 477,842, 554,721 and 555,985 are referred to.
Patent GB-1380809-A (GB)
Title: Production of pipe bend sheaths
IPC: F16L59/11
Filed: 1972-02-10
Abstract: 1380809 Corrugating sheets GMULLENDER 10 Feb 1972 [15 Feb 1971] 6365/72 Heading B5A [Also in Divisions F2 D1 and B3] Pipe bend insulating sheaths are formed from a flexible resiliently deformable sheet, e.g. of foamed plastics, which has been corrugated in longitudinal and transverse directions, e.g. by moulding or pressing, and which is subsequently cut along lines shown chain-dotted in Figs. 1a and lc into strips. The strips are then cut transversely, e.g. as at (73), (74) in Figs. 2a and 2b (not shown), to provide sections that can be folded inversely to wrap around a pipe bend. In Figs. 3 to 6 (not shown), the corrugations are formed with cusps (90) to (95).
Patent GB-651482-A (GB)
Title: Improvements in or relating to reciprocating pumps
IPC: F04B7/00
Filed: 1948-02-29
Abstract: 651,482. Reciprocating pumps. HUMPHREY'S RAILWAYS, Inc. Feb. 29, 1948, No. 6371. Convention date, July 11, 1945. [Class 102(i)] A reciprocating pump suitable for pumping fish carried in water comprises a piston 2 driven from a crankshaft 5 and a rotary valve 16 also driven from the same shaft. The valve is coaxially arranged in a housing 10 and is cylindrical in form and has a projecting stem 19; the inner surface of the valve forms a continuation of the cylinder surface. The valve has a port 17 co-operating with an inlet and outlet in the casing and the trailing edge 18 of the port is sharpened to shear any fish obstructing the opening when the valve closes.
Patent GB-178655-A (GB)
Title: Improvements in machines for balling yarn, thread, twine and the like
IPC: B65H54/64
Filed: 1921-02-26
Abstract: 178,655. Baines, E. N., and Schmidt, J. W. Feb. 26,1921. Collapsable spindles.- In a spindle for machines for balling yarn, thread, twine, and the like, of the kind provided with a cap expanded or retracted by an advancing or receding movement of the spindle in a doffing cup, a centrepiece b is provided with radial slots into which cranked arms d are withdrawn by the engagement of inclined faces d<1> thereon with a ring f on the doffing cup when the spindle a is drawn therein from the winding position shown in Fig. 1. Specification 11851/07, [Class 120, Spinning &c.], is referred to.
Patent GB-136975-A (GB)
Title: Improvements in and relating to Clutches.
Inventor: OLLARD JAMES CAMERON
IPC: F16D13/70
Filed: 1919-03-15
Abstract: 136,975. Ollard, J. C. March 15, 1919. Clutches, friction.-In clutches of the single intermediate plate type, for use on automobiles &c., an internally screwed lining 8 is secured to the fly-wheel 4 and is engaged by the screwed exterior of a split ring 12 which turns on, but moves axially with, a .plate 19 splined to the lining 8 and carrying actuating-levers 22. The ring 12 is rotated to adjust the clutching-mechanism for wear and is locked by a conical screw 14 engaging the split 13 in the ring 12 and forcing the ring against the lining 8. The levers 22 are formed with two bends so that their ends are engaged by lugs 38 on a spring-pressed actuating- sleeve 25 turning with the fly-wheel 4, rollers 40 near their fulcra bearing on hardened plates 31 on a clutch disk 29 keyed to the plate 19. A disk 32 sliding on the driven shaft 7 is thus gripped between the disk 29 and the fly-wheel 4, loose intermediate rings 33 being provided. Levers 46, engaging a loose collar 44 on the sleeve. 25 and actuated by a foot-lever, are employed for disengagement.
Patent GB-162151-A (GB)
Title: Improvements relating to tool-retaining devices for percussive drills
IPC: B25D17/08
Filed: 1920-03-04
Abstract: 162,151. Nyborg, T. G. March 4, 1920. Loose tools, retaining. - The tool 8 of a percussive drill is held between a stirrup 3 and a U-shaped locking-piece 4, which passes through eyes 3<a> in the stirrup and eyes 3<c>, 3<d> in one of the free ends of the stirrup. The free end 5 of the locking-piece 4 is formed with a projection entering a recess in one of the eyes 3<a>. The stirrup is pivoted in eyes 2 in a spiral spring 1, mounted on the muzzle cap. The end of the spring 1 is formed with a projection entering a recess in the muzzle cap.
Patent GB-261238-A (GB)
Title: Improvements in the divisions of feeding troughs for tied cattle
IPC: A01K5/01
Filed: 1926-03-10
Abstract: 261,238. Thompson, W., and Thompson, W. R. March 10, 1926. Feeding-appliances for animals.-A long continuous trough is provided with a number of divisions E that are supported by straps n from sleeves h -rotatable on rods h<1> that extend between round stanchions S and angle stanchions S<2>. In operative position each division bears against a fixed stop d and is locked in position by a movable stop d<1>. When it is desired to clean the trough the movable stops are withdrawn and the divisions swung round till they are inverted and rest against angle stops g. The stanchions S are set in the front wall of the trough and may be provided with quadrant bars S<1> to form stalls. Tying bars t<1>, t<2> may be arranged at the side of each stanchion S. The stop d may be, made movable as well as the stop d<1>
Patent GB-193689-A (GB)
Title: Improvement in fluid pressure actuated jacks
IPC: B66F3/25
Filed: 1922-03-07
Abstract: 193,689. Prall, G., and Capell, G. March 7, 1922. Jacks.-In fluid-pressure-actuated jacks the fluid is stored between tubular members 29, 46 mounted on a base 10 and the load-engaging member 75 is mounted on the closed end of a cylindrical plunger which is guided by the member 29. The plunger comprises telescopic tubular members 84, 36, the outer of which has a shoulder 38 which engages the flange 39 of a collar 40 attached to a casing 41. The lower end of the casing 41 has a nut 42 threaded on it and is secured to a collar 43 which engages the inner member 34. Any fluid which may leak past the packing 30<b> returns to the reservoir through a small hole 79 in the casing 41 when the plunger moves downwards. A valvecontrolled air vent 65 is provided at the upper end of the reservoir and a valve-controlled bvpass 58 is formed in the base for the return of fluid to the reservoir. A pump 13 is arranged in the base and communicates with the reservoir and tubular member 29 by valve-controlled passages.
Patent GB-239125-A (GB)
Title: Improvements in spring mattresses
IPC: A47C23/055
Filed: 1925-03-11
Abstract: 239,125. Fraser, H. A. March 11 ,1925. Mattresses.- In mattresses with upper and lower flexible wire surfaces connected by compression springs, the springs can be slidably displaced over the mattress surface without disconnection therefrom. The springs e are at their upper ends slidably connected to the longitudinal cords or cables c by clips or twisted wires f engaging adjacent pairs of cords. The lower ends of the springs are mounted on plates g which are slidably connected to cords d forming a lower surface. In a modified construction the cords or cables of both surfaces are connected at one end to a tensioning bar, and the upper cords are covered by wire fabric.
Patent GB-937700-A (GB)
Title: Pencil pointer
Inventor: CAYO EDWARD LESLIE
IPC: B43L23/00
Filed: 1962-02-21
Abstract: 937,700. Pencil sharpeners. V. D. DORSTEWITZ. Feb. 21, 1962, No. 6679/62. Class 146 (3). The angle of inclination of a pencil 22 may be varied, to suit the angle of lead required, with respect to conically tapered abrasive surface 9. The cover 5 has a cylindrical recess 18 which receives a rotatably adjustable pencil holder 23 having a split portion 24. The socket 25 of the holder 23 is disposed at an angle to the axis of rotation of the holder, such that by rotation of the holder the pencil may be presented at varying angles to the surface 9. The surface 9 is provided in a radially slidable member 8 urged downwardly by a spring 13, such that a friction surface 12 on the base thereof engages a bearing 6.
Patent GB-195369-A (GB)
Title: Improvements in or relating to wall plugs or the like
IPC: F16B13/06
Filed: 1923-03-08
Abstract: 195,369. Poirier, R. E. March 21, 1922, [Convention date]. Addition to 181,672. Screw-sockets.- Relates to wall plugs having an inner cone 3a co-operating with a screw or bolt 30 for wedging out a hollow casing 13 constructed as described in the parent Specification, for securing the plug in a recess in a wall or the like. According to this invention, the cone is made of less plastic a.nd more resistant material such as ozokerite, or even cf metal. When the cone is of metal, it is screw-threaded to receive the screw or bolt 30; but when the cone is of moulded material, it is formed with a smooth hole having an enlargement at the end for a head on the bolt, or is moulded with a nut 32<a> near the end to engage the screwthreads of the bolt.
Patent GB-454538-A (GB)
Title: Improvements in and relating to electric transformers
IPC: H01F27/38
Filed: 1936-03-06
Abstract: 454,538. Transformers. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. March 6, 1936, No. 6849. Convention date, March 8, 1935. [Class 38 (ii)] The primary and secondary windings 14, 16 have high leakage reactance. Auxiliary windings 18, 19 closely coupled with windings 14 and 16 respectively are provided and connected together through a variable condenser 20 by which the reactance of the transformer is varied. The core may be of shell type having a middle limb with an air gap and the primary and secondary windings with their auxiliary windings being wound on the outer limbs. Alternatively, the core may have three complete limbs, the primary winding and its auxiliary coil being wound on the upper part of the middle limb whilst the secondary winding and its auxiliary coil are wound on the lower part, magnetic extensions with air gaps being provided from the outer limbs to the middle limb between the primary and secondary windings. In a modification, the winding 19 may be dispensed with and part of the coil 16 connected in circuit with the coil 18 and condenser 20. Alternatively, both coils 18 and 19 may be dispensed with and the condenser connected in a circuit including a tapped part of the primary and secondary windings. The volt-amperes of the condenser are smaller than the reactance volt-amperes of the transformer.
Patent GB-115501-A (GB)
Title: Improvements in Tanks.
Inventor: FRANK JOHN WALTON
IPC: B64D37/08
Filed: 1917-05-14
Abstract: 115,501. Frank, J. W. May 14, 1917. Tanks.-A tank comprises an outer member made of parts 1, 1<a>, Fig. 2, bolted together at 1<c>, and an inner member 15 held in place by perforated rings 16, sleeves 18, 19 of the inner member fitting into sleeves 5, 6 integral with the outer member, the space between the members being exhausted of air and a heat-insulating covering 25 being provided. A screw cap 8 has a sleeve 9, Fig. 4, with an air passage controlled by a cock 14 and a spring-pressed valve 10. Perforated partitions 27 prevent undue agitation of the contents. which are drawn off through a cock 23 fitted to a settling chamber 22.
Patent GB-117910-A (GB)
Title: Improvements in Abrading or Polishing Machines for Knives and other Articles.
Inventor: PELMORE WALTER
IPC: B24B3/54
Filed: 1917-05-14
Abstract: 117,910. Pelmore, W. May 14, 1917. Knives and the like, polishing.-Relates to machines of the kind comprising two rotary disks between the sides of which the knife is inserted. The two disks are carried on a single shaft, one or both of them being fl e x i b 1 y mounted, so that they may be pressed together by external means. The disks may be mounted on universal joints, but in the construction shown they are made of leather, or like flexible material, and have secured at their peripheries circular troughs in which the polishing pads d are fixed. The knife rest i acts upon one of the disks by means of a bell-crank lever k, link l and presser m; the presser may have a ball contact.
Patent GB-786214-A (GB)
Title: Improvements in or relating to sliding door assemblies
IPC: E05F1/04
Filed: 1955-03-09
Abstract: 786,214. Door opening-appliances. ALBION MOTORS, Ltd., and KENNEDY, F. J. March 7, 1956 [March 9, 1955], No. 6903/55. Class 65(1) A door 6 is slidably suspended from a beam 1 having one end pivoted at 2 to a wall 4 and having the other end connected for vertical displacement to a valve controlled fluid pressure cylinder 10. A hand cord system connected to a rod 15 and actuating lever 14 operates a valve 12 for admitting compressed air to the cylinder 10 to raise the free end of the beam 1 so that the door slides to its open position. The valve actuating lever 14 holds the valve open by means of a latch 18 which is released by a projection 36 as the beam is raised to connect the cylinder to atmosphere. The escape of the compressed air is controlled so that there is a predetermined time delay before the end of the beam drops sufficiently for the door to automatically slide shut:
Patent GB-693066-A (GB)
Title: Improvements relating to radio frequency transformers
Inventor: TIBBS CHRISTOPHER EVAN MUNDELL
IPC: H05B6/36
Filed: 1951-03-22
Abstract: 693,066. Transformers. RADIO HEATERS, Ltd. March 21, 1952 [March 22, 1951], No. 6916/51. Class 38 (ii). A high-frequency transformer for supplying an induction heating coil comprises a secondary winding 13 of flat metal strip wound in a helix of uniform diameter, and a tubular primary winding 11 wound in a helix of diameter increasing from one end to the other, so that the spacing between the windings varies with the voltage between them. The secondary winding is wound on an insulating sleeve 14 carried between cheeks 15, 16 fixed to the front panel 19, and carries tube 21 through which cooling water may be passed. This winding comprises three sections connected by straps (not shown) and terminals on each section provide different output powers. The primary winding 11 is in a helical groove of progressive depth cut in an insulating former 8, which is movable on rollers 9, bearing a beam 10, by rotation through a knob (not shown) of pulley 28 to move wire 25 which passes over pulley 27 and is fixed to former 8 at its ends. By this movement the coupling between the windings is varied. Flexible conducting tapes 38, 39 wound on spring-loaded reels 40, 41, and flexible insulating tubes 32, 37 provide electrical and cooling water connections respectively to the primary windings. The primary winding may be a flat strip at the bottom of a helical groove of changing depth in a fixed insulating former with holes through it to facilitate cooling, Fig. 1 (not shown).
Patent GB-1010627-A (GB)
Title: Process for the polymerization of olefinically unsaturated hydrocarbons in a fluidized bed
IPC: C08F10/00
Filed: 1964-02-19
Abstract: The fluidized bed polymerization process of Specification 968,139 is modified by activating the catalyst by polymerizing a polymerizable hydrocarbon in a preliminary suspension of the catalyst.  In the examples the catalyst is formed by reducing TiCl4 with Al(C2H5)3 to form the purple modification of TiCl3 to a suspension of which in n-pentane or propane are added Al (C2H5)2Cl and propylene. The so formed catalyst is then used for the fluidized bed polymerization of propylene.  Specifications 954,798 and 968,139 are referred to.ALSO:A suspension of the purple modification of TiCl3, used as a polymerization catalyst component (see Division C3), is formed by reacting solutions of TiCl4 and Al(C2H5)3 in propane or n-pentane at 170 DEG  C. under pressure.  Specifications 954,798 and 968,139 are referred to.
Patent GB-1183401-A (GB)
Title: A Panel Element for Walls or Ceilings of Buildings
IPC: E04F13/18
Filed: 1967-02-14
Abstract: 1,183,401. Wall facings. EXPLOATOR A.B. 14 Feb., 1967 [17 Feb., 1966], No. 6961/67. Heading E1B. Wall facing elements for, e.g. bathroom walls, are made of plastics or rubber and interlock along opposed edges by means of tongues 6 and grooves 5, the grooves being formed between flanges 7 and 8 of unequal extent in the direction of the cross-section of the groove. A channel 10 is formed along the root of the flange 6 to receive the heads of staples 9 used to fasten the elements to the wall. Spacing ribs 3 may be formed on the elements.
Patent GB-124449-A (GB)
Title: Improvements in and relating to the Manufacture of Confectionery.
IPC: A23G3/00
Filed: 1919-03-20
Abstract: 124,449. Kelley-Clarke Co., (Assignees of Price, C. E.). March 26, 1917, [Convention date]. Coating confectioners' goods. - To maintain the soft and creamy interiors of bon-bons moist they are coated with a substantially impervious coating consisting of a mixture of fat and sugar with, if desired, milk. A suitable mixture contains 35 parts cocoa butter, 50 parts sugar, and 10 parts dry milk, all by weight.
Patent GB-1056462-A (GB)
Title: Variable capacity axial piston type hydraulic pump
Inventor: HEUMANN HANS
IPC: F04B1/30
Filed: 1965-02-18
Abstract: 1,056,462. Linkwork. INDUSTRIEWERKE KARL-MARX-STADT VEB. Feb. 18, 1965, No. 7110/65. Heading F2K. [Also in Division F1] The stationary or rotatable cam plate 10 in an axial piston pump is pivotable about an axis 0 2 -0 2  to vary the piston displacement and the face 12 of a bearing plate 12 is inclined to the axis 0 2 -0 2  to provide a phase displacement in the dead-centre positions of the pistons. The plate 12 is prevented from rotating in the plate 10 by a peg 13. The plate 12 may be rotated relative to the cam plate 10 and then fixed in position to provide a further variation in the piston dead-centre positions. The plate 12 may be replaced by a roller bearing inclined to the axis 0 2 -0 2 .
Patent GB-569065-A (GB)
Title: Improvements in or relating to the manufacture of liquid containers
IPC: B64D37/06
Filed: 1940-04-19
Abstract: 569,065. Making liquid containers. SHAKESBY, L., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. April 19, 1940; No. 7113. [Class 69 (i)] In making flexible fuel &c. containers for aircraft &c., the parts of the container are tailored, assembled and secured on a collapsable former which is then collapsed and removed through a relatively small aperture in one of the walls to permit of a stitching or other operation, the former being then re-inserted and re-erected in the container to permit further operations, and finally again collapsed and removed. A former - 1, which may be as described in Specification 569,064, is erected, and end walls 9, 10, of fabric treated with synthetic, petrol-resistant rubber, are applied and their edges pleated at 13 and cemented to form flanges 14, the pleats 13 being then folded flat against the flanges 14, cemented thereto and rolled ; the end walls are then removed from the former, turned inside out and replaced. Alternatively, the excess material of the pleats may be cut away to form a smooth flange, a fabric band cemented to the flange and rolled, and the end walls again turned and replaced. A strip of fabric 17 is then wrapped round the former with its ends overlapping at 23, the edges of the strip being cemented to the end walls, and the overlap being also cemented and the joints rolled. The former is then collapsed and removed through aperture 12, the joints reinforced by stitching 24, the former replaced, and the stitching proofed by synthetic rubber and, if desired, reinforced by strips of fabric. The former is then removed, and the container is vulcanized. The former may then be reinserted and a self-sealing coating of one or more layers of swellable rubber &c. applied to the container by adhesive, the former being then again removed and a filler cap &c. applied to the opening 12.
Patent GB-716519-A (GB)
Title: An ester of piperonylic acid and insecticidal compositions thereof
Inventor: MITCHELL WILLIAM
IPC: C07D317/68
Filed: 1952-03-20
Abstract: The invention comprises an ester of piperonylic acid with the n-butyl ether of diethylene glycol of the formula <FORM:0716519/IV (b)/1> It is made by reacting the mono-n-butyl ether of diethylene glycol with piperonylic acid chloride in benzene in the presence of pyridine and is used in pyrethrum insecticides (see Group VI).ALSO:Insecticidal preparations comprise piperonylic acid n-butoxylethoxy-ethyl ester (see Group IV(b)) together with a pyrethu3 extract.  An example describes an insecticide comprising 0.2 per cent of the above ester and 0.025 per cent of pyrethrins in a kerosene solvent.